ORIGINAL RESEARCH Territorial

  • Microvascular Perfusion
  • Impairment Brain
  • Arteriovenous Malformations
  • J. Fiehler
  • T. Illies
  • M. Piening
  • N. Forkert
  • J. Regelsberger
  • U. Grzyska
  • H. Handels
  • J. V. Byrne
Publication date
August 2015

Abstract

BACKGROUND AND PURPOSE: Both the existence and clinical relevance of a steal phenomenon in brain arteriovenous malformations (AVMs) remains a matter of debate. This study aimed to assess perfusion in the brain adjacent to brain AVMs and to relate these to macrovascular blood flow in a single measurement. MATERIALS AND METHODS: Twenty consecutive patients with AVMs with a median age of 37 years were evaluated by 3T MR imaging by using 3D time-resolved MR angiography to determine blood flow and perfusion patterns. Cerebral perfusion was estimated by using an arterial spin-labeling technique in vascular territories around the nidus and in symmetric regions of interest in the ipsilateral and contralateral hemispheres. Mapping of concentric shel...

Extracted data

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